#682 folding-2.pdc.kth.se: Noticeable V7 slowdown

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#682 folding-2.pdc.kth.se: Noticeable V7 slowdown

Postby Grandpa_01 » Tue May 10, 2011 3:20 am

Has any one looked into the problem with this collection server it will not allow more than 320kbps most of the time 256kbps from the v7 bigadv on Windows7 it takes anywhere from 1 to 3 hours to upload a WU to it. My Linux machines take about 10 minuets to upload over the same router and Internet connection. I can run Linux on a machine and upload a completed bigadv wu in 10 minutes then switch it over to Windows7 complete a WU and it will take 1 to 3 hours to upload. I can take that same machine and running on Windows 7 send a 100MB file to my son in Long Beach CA. in 7 minutes which is not too far from Stanford so a simple assumption tells me the problem is on Stanford's end. Will somebody please check into this. It has been going on way too long. Windows 7 Resource monitor reports it as folding-2.pdc.kth.se / 130.237.232.237 remote port 8080
Image
2 - SM H8QGi-F AMD 6xxx=112 cores @ 3.2 & 3.9Ghz
5 - SM X9QRI-f+ Intel 4650 = 320 cores @ 3.15Ghz
2 - I7 980X 4.4Ghz 2-GTX680
1 - 2700k 4.4Ghz GTX680
Total = 464 cores folding
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Re: folding-2.pdc.kth.se

Postby John_Weatherman » Tue May 10, 2011 6:22 am

Going from the address, that is one of the servers in Sweden.
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Re: folding-2.pdc.kth.se

Postby kasson » Tue May 10, 2011 1:41 pm

The server is working fine. Sometimes there can be a transatlantic network bottleneck, unfortunately.
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Re: folding-2.pdc.kth.se

Postby Grandpa_01 » Wed May 11, 2011 2:42 am

Unfortunately for me there is a transatlantic network bottleneck every time I send a 6900 or 6901 WU. So I guess you are saying if I do not like it do not run Windows because nothing can be done about it. OK I can live with that I will just run them all on Linux v7 I do not get any 6900 or 6901 WU's on Linux. Here is my most recent Windows return. At least it did not disconnect this time and have to start over 2 or 3 times.

Code: Select all
08:21:13:Unit 00:Completed 250000 out of 250000 steps  (100%)
08:21:26:Unit 00:DynamicWrapper: Finished Work Unit: sleep=10000
08:21:36:Unit 00:
08:21:36:Unit 00:Finished Work Unit:
08:21:36:Unit 00:- Reading up to 52713120 from "00/wudata_01.trr": Read 52713120
08:21:36:Unit 00:trr file hash check passed.
08:21:36:Unit 00:- Reading up to 42755744 from "00/wudata_01.xtc": Read 42755744
08:21:37:Unit 00:xtc file hash check passed.
08:21:37:Unit 00:edr file hash check passed.
08:21:37:Unit 00:logfile size: 198846
08:21:37:Unit 00:Leaving Run
08:21:38:Unit 00:- Writing 95835650 bytes of core data to disk...
08:21:39:Unit 00:  ... Done.
08:22:04:Unit 00:- Shutting down core
08:22:04:Unit 00:
08:22:04:Unit 00:Folding@home Core Shutdown: FINISHED_UNIT
08:22:05:FahCore, running Unit 00, returned: FINISHED_UNIT (100)
08:22:05:Sending unit results: id:00 state:SEND project:6900 run:10 clone:3 gen:46 core:0xa5 unit:0x483107a34dc71672002e0003000a1af4
08:22:05:Unit 00: Uploading 91.40MiB
08:22:05:Connecting to 130.237.232.141:8080
08:22:05:Starting Unit 01
08:22:05:Running core: C:/Users/Rick/AppData/Roaming/FAHClient/cores/www.stanford.edu/~pande/Win32/x86/beta/Core_a5.fah/FahCore_a5.exe -dir 01 -suffix 01 -lifeline 2496 -version 701 -checkpoint 15 -np 12
08:22:05:Started core on PID 4848
08:22:05:FahCore 0xa5 started
08:22:05:Started thread 9 on PID 2496
08:22:05:Unit 01:
08:22:05:Unit 01:*------------------------------*
08:22:05:Unit 01:Folding@Home Gromacs SMP Core
08:22:05:Unit 01:Version 2.27 (Mar 12, 2010)
08:22:05:Unit 01:
08:22:05:Unit 01:Preparing to commence simulation
08:22:05:Unit 01:- Looking at optimizations...
08:22:05:Unit 01:- Created dyn
08:22:05:Unit 01:- Files status OK
08:22:08:Unit 01:- Expanded 24863681 -> 30796292 (decompressed 123.8 percent)
08:22:08:Unit 01:Called DecompressByteArray: compressed_data_size=24863681 data_size=30796292, decompressed_data_size=30796292 diff=0
08:22:09:Unit 01:- Digital signature verified
08:22:09:Unit 01:
08:22:09:Unit 01:Project: 6901 (Run 11, Clone 14, Gen 27)
08:22:09:Unit 01:
08:22:09:Unit 01:Assembly optimizations on if available.
08:22:09:Unit 01:Entering M.D.
08:22:11:Unit 00: 0.21%
08:22:15:Unit 01:Mapping NT from 12 to 12
08:22:17:Unit 00: 0.44%
08:22:17:Unit 01:Completed 0 out of 250000 steps  (0%)
08:22:23:Unit 00: 0.67%
08:22:29:Unit 00: 0.90%
08:22:35:Unit 00: 1.13%
08:22:41:Unit 00: 1.36%
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08:34:53:Unit 00: 29.21%
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08:35:05:Unit 00: 29.66%
08:35:11:Unit 00: 29.89%
08:35:17:Unit 00: 30.12%
08:35:23:Unit 00: 30.35%
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08:35:41:Unit 00: 31.05%
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08:35:53:Unit 00: 31.51%
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08:36:11:Unit 00: 32.19%
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08:36:23:Unit 00: 32.65%
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08:36:59:Unit 00: 34.04%
08:37:05:Unit 00: 34.27%
08:37:11:Unit 00: 34.49%
08:37:17:Unit 00: 34.72%
08:37:23:Unit 00: 34.95%
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08:37:35:Unit 00: 35.41%
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08:37:53:Unit 00: 36.11%
08:37:59:Unit 00: 36.34%
08:38:05:Unit 00: 36.57%
08:38:11:Unit 00: 36.80%
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08:38:29:Unit 00: 37.49%
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08:38:41:Unit 00: 37.94%
08:38:47:Unit 00: 38.18%
08:38:53:Unit 00: 38.41%
08:38:59:Unit 00: 38.64%
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08:39:29:Unit 00: 39.79%
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08:39:47:Unit 00: 40.48%
08:39:53:Unit 00: 40.71%
08:39:59:Unit 00: 40.94%
08:40:05:Unit 00: 41.17%
08:40:11:Unit 00: 41.40%
08:40:17:Unit 00: 41.63%
08:40:23:Unit 00: 41.86%
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08:40:35:Unit 00: 42.31%
08:40:41:Unit 00: 42.54%
08:40:47:Unit 00: 42.77%
08:40:53:Unit 00: 43.00%
08:40:59:Unit 00: 43.23%
08:41:05:Unit 00: 43.46%
08:41:11:Unit 00: 43.69%
08:41:17:Unit 00: 43.92%
08:41:23:Unit 00: 44.15%
08:41:29:Unit 00: 44.37%
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08:42:23:Unit 00: 46.45%
08:42:29:Unit 00: 46.68%
08:42:35:Unit 00: 46.90%
08:42:36:Unit 01:Completed 2500 out of 250000 steps  (1%)
08:42:41:Unit 00: 47.14%
08:42:47:Unit 00: 47.37%
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09:02:55:Unit 01:Completed 5000 out of 250000 steps  (2%)
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09:05:05:Unit 00: 98.60%
09:05:11:Unit 00: 98.83%
09:05:17:Unit 00: 99.06%
09:05:23:Unit 00: 99.29%
09:05:29:Unit 00: 99.52%
09:05:35:Unit 00: 99.75%
09:05:41:Unit 00: 99.98%
09:05:46:Unit 00: Upload complete
09:05:46:Server responded WORK_ACK (400)
09:05:46:Cleaning up Unit 00
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Re: folding-2.pdc.kth.se

Postby k1wi » Wed May 11, 2011 3:35 am

43 mins is only 15 mins better than me on any server, is the disconnect after a set period of time, say 45mins/1hr?

Have you done a tracert or a speedtest to Sweden? Perhaps there is a dodgy hop somewhere or your ISP doesn't have enough international bandwidth...
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Re: folding-2.pdc.kth.se

Postby bruce » Wed May 11, 2011 5:53 am

TraceRoute times are more like latency than like bandwidth, but the first 50 ms is spent between my home and Los Angeles and it's only 235 ms to Sweden.

3 50 ms 51 ms 51 ms lax1.cr1.gig10.0.1.121.dslextreme.com [66.51.197.177]
4 50 ms 49 ms 49 ms 66.186.192.181
5 61 ms 64 ms 64 ms phx-ten2-1-la-ten3-3.bboi.net [64.127.128.146]
6 87 ms 85 ms 86 ms dal-ten2-4-phx-ten1-1.bboi.net [64.127.128.237]
7 102 ms 102 ms 101 ms nsh-ten1-4-dal-ten2-1.bboi.net [64.127.130.49]
8 108 ms 108 ms 108 ms atl-ten3-2-nsh-ten4-1.bboi.net [64.127.130.57]
9 122 ms 121 ms 122 ms ash-ten3-1-atl-ten3-1.bboi.net [66.216.1.158]
10 127 ms 126 ms 127 ms nyc-ten1-1-ash-ten3-3.bboi.net [66.216.1.162]
11 237 ms 235 ms 238 ms us-man.nordu.net [198.32.160.21]
12 236 ms 235 ms 235 ms dk-ore.nordu.net [109.105.97.46]
13 233 ms 233 ms 233 ms dk-uni.nordu.net [109.105.97.26]
14 289 ms 238 ms 239 ms se-tug.nordu.net [109.105.97.9]
15 231 ms 231 ms 233 ms t1tug.sunet.se [109.105.102.18]
16 238 ms 239 ms 239 ms m1tug-ae0-v1.sunet.se [130.242.83.42]
17 235 ms 234 ms 235 ms m1fre-ae0-v1.sunet.se [130.242.83.50]
18 233 ms 236 ms 234 ms 193.11.0.194
19 239 ms 238 ms 236 ms pdc1-br1g-p2p.gw.kth.se [130.237.0.3]
20 237 ms 237 ms 236 ms pdc-juniper03-juniper01.pdc.kth.se [192.36.253.233]
21 235 ms 236 ms 236 ms folding-2.pdc.kth.se [130.237.232.237]

Trace complete.
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Re: folding-2.pdc.kth.se

Postby k1wi » Wed May 11, 2011 6:15 am

Yeah, I understand that, although the two can be related. It might identify any errant hops, weird routing or what not, particularly if there are disconnects. Most likely the speedtest could show a low upload to Stanford - what's your download speed for that project Grandpa?
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Re: folding-2.pdc.kth.se

Postby Grandpa_01 » Wed May 11, 2011 10:19 am

It downloads very fast from the same server so I have a hard time with the transatlantic network bottleneck theory. As you can see it took 48 sec. to download (23.7MB) the same WU that it took 1 1/2 hours to send. It acts more like throttling.

Code: Select all
2:17:22:Assigned to work server 130.237.232.141
22:17:22:Requesting new work unit for slot 00: READY smp:12 from 130.237.232.141
22:17:22:Connecting to 130.237.232.141:8080
22:17:24:Started thread 7 on PID 2496
22:17:24:Server connection id=1 on 0.0.0.0:36330 from 127.0.0.1
22:17:28:Slot 00: Downloading 23.71MiB
22:17:34:Slot 00: 6.74%
22:17:40:Slot 00: 19.73%
22:17:46:Slot 00: 33.86%
22:17:52:Slot 00: 45.22%
22:17:58:Slot 00: 58.52%
22:18:04:Slot 00: 72.03%
22:18:10:Slot 00: 85.72%
22:18:16:Slot 00: 99.49%
22:18:16:Slot 00: Download complete
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Re: folding-2.pdc.kth.se

Postby kasson » Wed May 11, 2011 2:20 pm

It's certainly possible. I get transfer speeds that aren't exactly speedy on most of my large file transfers from Sweden and UK supercomputing centers. If you can find a netspeed server somewhere nearby, that's always helpful. Any specific info we get, we can pass to the networking people at the supercomputing center in Sweden where the servers live (no promises on fixes, but we can try).
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Re: folding-2.pdc.kth.se

Postby Grandpa_01 » Thu May 12, 2011 2:48 am

SpeedTest.Net says my upload speed to Sweeden is 1.82Mbps so it appears that the server is being throtteled.
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Re: folding-2.pdc.kth.se

Postby Grandpa_01 » Sat May 14, 2011 11:56 am

Just sent a 2689 to vspj16.stanford.edu 2Mbps on the same machine Windows 7 v7 so I am leaning very heavily toward throttling on the Sweden end of things. Why would you use a server that slows things down :e?:
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Re: folding-2.pdc.kth.se

Postby codysluder » Sat May 14, 2011 4:27 pm

1) Gromacs is developed in Sweden.

2) FAH is world-wide. From Europe, Sweden may be fast and Stanford may be slow. That would be why Kasson wants speed reports.
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Re: folding-2.pdc.kth.se

Postby Grandpa_01 » Sat May 14, 2011 5:02 pm

codysluder wrote:1) Gromacs is developed in Sweden.

2) FAH is world-wide. From Europe, Sweden may be fast and Stanford may be slow. That would be why Kasson wants speed reports.


I am having a hard time believing they are not throttling or understanding why the ISP to a University would throttle but apparently they are, SpeedTest.Net says my upload speed to Sweden is 1.82Mbps which would be about right for my speed but Windows 7 Resource monitor reports 320kbps most of the time 256kbps to folding-2.pdc.kth.se. I have watched the connection when uploading to folding-2.pdc.kth.se from the very start of the upload and it never gets above 327Kbps and 90% of the time runs at 256Kbps that is a very good indicator that throttling is taking place. Windows 7 Resource monitor also reports 1.82Mbps when I run the speedtest to Sweeden which shows what my upload speed should be to folding-2.pdc.kth.se and it runs at that speed through the test. Simple deduction tells me there is something wrong at folding-2.pdc.kth.se whether it is a problem with the server being overloaded or there ISP throttling I do not know but there is a problem. And I do not think it is a transatlantic network bottleneck, at least from the test I have run it does not appear to be.
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Re: folding-2.pdc.kth.se

Postby k1wi » Sat May 14, 2011 6:47 pm

I don't have the same bottleneck, so I don't think that the server or possibly university is throttling you. It would be very unlikely for them to throttle particular users?

Knowing what I know about the vagaries of internet routing, I'm still inclined to suggest that if there is not a bottleneck, then there is an issue with routing. Hence the need for a tracert. The speedtest to Sweden might use a different routing point to the one it uses to get to the University and will certainly use different local routings. For example, my tracert to the speedtest ISP is across level3 from LA, but telia for the folding server. Also, it could be that you transatlantic carrier routes through a different landing points for the university and the speedtest (for me Telia lands in Sweden, but level3 lands in Copenhagen). So my traffic to that server goes across the atlantic on Telia (I can also check Interner2 but have only run tracert there so far), and has no issues. It is of interest as to who yours routes through and whether or not it is different.

p.s my speedtest, using level3, was about 300kbps, half the speed of the FAH servers...

p.s. it might actually be helpful if kasson did a tracert to your machine from the pdc server...

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Re: folding-2.pdc.kth.se

Postby Grandpa_01 » Sat May 14, 2011 7:43 pm

Not that I understand it but here is the tracecers from one of my Linux machines to the server in Sweeden.

Code: Select all
rick@ubuntu:~$ sudo traceroute -I 130.237.232.237
traceroute to 130.237.232.237 (130.237.232.237), 30 hops max, 60 byte packets
 1  192.168.1.1 (192.168.1.1)  0.254 ms  0.250 ms *
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  * pos-0-1-0-0-cr01.portland.or.ibone.comcast.net (68.86.93.109)  16.541 ms  21.640 ms
 7  pos-1-14-0-0-cr01.sacramento.ca.ibone.comcast.net (68.86.85.201)  33.896 ms  33.904 ms  33.904 ms
 8  pos-0-9-0-0-cr01.sanjose.ca.ibone.comcast.net (68.86.85.181)  37.917 ms  38.017 ms  38.013 ms
 9  pos-0-6-0-0-pe01.11greatoaks.ca.ibone.comcast.net (68.86.85.66)  40.332 ms  40.328 ms  40.323 ms
10  xe-9-3-0.sjc10.ip4.tinet.net (213.200.80.165)  39.552 ms  39.554 ms  40.152 ms
11  xe-1-2-0.cph10.ip4.tinet.net (89.149.184.190)  207.280 ms  206.986 ms  201.070 ms
12  nordunet-gw.ip4.tinet.net (77.67.73.78)  204.083 ms  201.875 ms  208.295 ms
13  se-tug.nordu.net (109.105.97.9)  224.603 ms  220.529 ms  220.519 ms
14  t1tug.sunet.se (109.105.102.14)  220.375 ms  220.383 ms  220.378 ms
15  m1tug-ae0-v1.sunet.se (130.242.83.42)  221.585 ms  221.586 ms  221.680 ms
16  m1fre-ae0-v1.sunet.se (130.242.83.50)  260.281 ms  260.255 ms  217.730 ms
17  m1fre-ae0-2001.sunet.se (193.11.0.194)  218.947 ms  214.607 ms  219.691 ms
18  pdc1-br1g-p2p.gw.kth.se (130.237.0.3)  220.036 ms  215.555 ms  219.359 ms
19  pdc-juniper03-juniper01.pdc.kth.se (192.36.253.233)  221.889 ms  221.893 ms  221.887 ms
20  folding-2.pdc.kth.se (130.237.232.237)  214.668 ms  221.851 ms  221.847 ms


Here is the one from the same machine Windows 7

Code: Select all
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Rick>tracecert 130.237.232.237
'tracecert' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Rick>tracert 130.237.232.237

Tracing route to folding-2.pdc.kth.se [130.237.232.237]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  READYSHARE [192.168.1.1]
  2     8 ms     7 ms     7 ms  73.105.64.1
  3     9 ms     7 ms     9 ms  ge-3-9-ur01.burlington.wa.seattle.comcast.net [6
8.86.113.165]
  4    13 ms    13 ms    11 ms  te-0-10-0-1-ar01.burien.wa.seattle.comcast.net [
68.86.96.118]
  5    11 ms    11 ms    11 ms  ae-0-0-ar03.burien.wa.seattle.comcast.net [68.86
.177.130]
  6    16 ms    16 ms    15 ms  pos-0-2-0-0-cr01.portland.or.ibone.comcast.net [
68.86.93.117]
  7    30 ms    28 ms    29 ms  pos-1-14-0-0-cr01.sacramento.ca.ibone.comcast.ne
t [68.86.85.201]
  8    33 ms    33 ms    30 ms  pos-0-9-0-0-cr01.sanjose.ca.ibone.comcast.net [6
8.86.85.181]
  9    36 ms    34 ms    35 ms  pos-0-6-0-0-pe01.11greatoaks.ca.ibone.comcast.ne
t [68.86.85.66]
 10    33 ms    34 ms    33 ms  xe-9-3-0.sjc10.ip4.tinet.net [213.200.80.165]
 11   201 ms   200 ms   201 ms  xe-1-2-0.cph10.ip4.tinet.net [89.149.184.190]
 12   198 ms   198 ms   200 ms  nordunet-gw.ip4.tinet.net [77.67.73.78]
 13   216 ms   215 ms   216 ms  se-tug.nordu.net [109.105.97.9]
 14   233 ms   216 ms   215 ms  t1tug.sunet.se [109.105.102.14]
 15   217 ms   216 ms   217 ms  m1tug-ae0-v1.sunet.se [130.242.83.42]
 16   218 ms   217 ms   217 ms  m1fre-ae0-v1.sunet.se [130.242.83.50]
 17   214 ms   217 ms   241 ms  m1fre-ae0-2001.sunet.se [193.11.0.194]
 18   215 ms   215 ms   215 ms  pdc1-br1g-p2p.gw.kth.se [130.237.0.3]
 19   219 ms   218 ms   220 ms  pdc-juniper03-juniper01.pdc.kth.se [192.36.253.2
33]
 20   226 ms   216 ms   215 ms  folding-2.pdc.kth.se [130.237.232.237]

Trace complete.

C:\Users\Rick>
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